CPC B29C 70/32 (2013.01) [B29L 2023/22 (2013.01)] | 17 Claims |
1. A method of forming a hybrid tube, the method comprising:
rotating a mandrel about a longitudinal axis thereof;
during the rotating, helically winding a first strip about the mandrel, the first strip being dispensed at a predetermined angle from a first housing translating alongside the mandrel;
during or after the helical winding, while the mandrel is rotating, bonding overlapping strip portions on the mandrel, thereby forming the hybrid tube; and
forming one or more metal fins on the hybrid tube.
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